Clutch mechanism



June 1936- e. F.IYAGER ET AL CLUTCH MECHANI S M Filed Oct. 26, 1935Patented June 9, 1936 CLUTCH MECHANISM George F. Yager and Oliver J.Heath, Toledo, Ohio, assignors to The Bunting Brass and Bronze Company,Toledo, Ohio, a corporation of Ohio Application October 26, 1933, SerialNo. 695,347

2 Claims.

This invention relates generally to a clutch and brake mechanism for usein molding apparatus of the type illustrated in our pending application,

Serial No. 560,454.

One of the essential objects of the invention is to provide a mechanismof the type mentioned wherein both the clutch and brake are under thecontrol of a single operating member.

Another object is to provide a mechanism wherein the operating member isat a point re-- mote to the clutch and brake and may be operated by afoot of the operator so that his hands may be free for other purposes.

Another object is to provide a mechanism wherein means is provided inassociation with the remote control means just mentioned for holding fora predetermined period the clutch in an operative position after it hasbeen actuated by the operating member.

Another object is to provide a mechanism wherein means carried by arockshaft is operable when the shaft is actuated in one direction by anoperating member for rendering the clutch effective and the brakeineffective and is operable when the shaft is actuated in the oppositedirection by a spring for rendering the clutch ineffective and the brakeeffective.

Other objects, advantages and novel details of construction of thisinvention will be made more apparent as this description proceeds,especially when considered in connection with the accompanying drawings,wherein:-

Figure 1 is a horizontal sectional view through an apparatus havingclutch and brake mechanism embodying our invention;

Figure 2 is a vertical longitudinal sectional view taken substantiallyon the line 22 of Figure 1;

Figure 3 is a vertical transverse sectional view taken substantially onthe line 3-3 of Figure 1;

Figure 4 is a horizontal sectional View taken substantially on the line44 of Figure 2.

Referring now to the drawing, A is the main frame of a moldingapparatus; II and 72, respectively, are parallel shafts journaled in theframe; 13 is a pulley loose on shaft H and driven by a belt 14 from amotor (not shown); and l5 is a combination brake and clutch on shaft TIand having a shifting collar 75. ll is a disc rigid with shaft l2, and18 is a sleeve upon a reduced portion of shaft l2 and connected byshearable pins l9 to disc ll. 89 and 8!, respectively, are change speedgears rigid with shaft 1| and sleeve 18; 82 is a pinion rigid with shaft72; 83 is a shaft journaled in the frame; 84 is a gear rigid with shaft83 and driven by pinion 82; is a shaft journaled in the frame; 86 is apinion rigid with shaft 83; and 81 is a gear rigid with shaft 85 anddriven by pinion 86. 88 are cams fixed to shaft 85; 89 are rollersengaging said cams; are links connected to said rollers and adapted toactuate a squeeze table (not shown) of the molding apparatus; I 00 is ashaft journaled in the frame A; IllI represents gearing driving theshaft Illfl from shaft 85; N32 is a cam fixed t0 shaft I90; I03 is aroller engaging the cam I02; and IE6 is a suitable driver for a ram (notshown) of the molding apparatus connected to roller I03.

In the present instance the shifting collar I6 of the clutch and brakeassembly 15 is preferably indirectly connected to a pedal 44 so as to beactuated thereby. As shown, I08 is a rockshaft journaled in bearings I09and III] carried by the frame A; III is a yoke fixed to the rockshaftI08 and connected to the collar I6 at diametrically opposite pointsthereof; H2 is a rocker fixed to the rockshaft I 08; and H3 is a linkterminally connected to the rocker H2 and pedal 44. The spring 46 forthe pedal 44 is terminally connected to the rocker I I2 and to a pin II5 fixed to the frame A.

In order that shaft 85 will be limited to one complete revolution eachtime the pedal 44 is depressed, we have provided a roller I I9 carriedby a lever I 20 fixed to rockshaft I 08 and alternately engageable withan edge I2I of and a recess I22 in a ring I23 fixed to one side of gear81. Preferably the arrangement is such that the roller I I9 is withdrawnfrom the recess I22 by the lever I20 when the pedal 44 is depressed. Atthe same time the collar I6 is shifted by the yoke I I I to release thebrake I30 and render the clutch I3I operative to connect the pulley 13to shaft 'lI As a result gear 81 will rotate shaft 85 and in doing sowill cause ring I23 to turn therewith. The roller H9 will then ride onedge I2I of ring I23 holding clutch I 3| engaged until gear 81 completesone revolution whereupon roller II9 will be returned by spring 46 intorecess I22 in ring I23, releasing clutch I3I and causing brake I3IJ tobecome operative.

What we claim as our invention is:

1. In combination, a driven shaft, drive means for the driven shaft, aclutch controlling the operation of the driven shaft by the drive means,a

rotatable shaft, a driving connection between the ed to said clutch, arocker arm rigid intermediate 1' its ends with the rockshaft, anoperating pedal, .a link terminally connected to said pedal and rockerarm, and a spring anchored at one end and connected at the other to saidrocker arm, and means for limiting rotation of the rotatable shaft toone complete revolution each time the pedal is depressed including aring fixed to and projecting laterally from one side of the gear, theouter edge of said ring being substantially parallel to said side of thegear and having a recess therein, an arm rigid with the rockshaft, andan anti-friction element carried by the last mentioned arm andalternately engageable with the edge and recess.

2. In combination, a drivenshaft, drive means for the driven shaft, aclutch controlling the operation of the driven shaft by the drive means,

a rotatable shaft, a driving connection between the rotatable shaft andthe driven shaft including a gear on the rotatable shaft, actuatingmeans for said clutch including a rockshaft, a shifter fork carried bythe rockshaft and engaging said clutch, a rocker arm rigid intermediateits ends with the rockshaft, an operating member, a link terminallyconnected to said member and rocker arm, a spring anchored at one endand connected at the other to said rocker arm, and means associated withsaid gear for limiting rotation of the rotatable shaft to one completerevolution each time the member aforesaid is operated.

GEORGE F. YAGER. OLIVER J. HEATH.

